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You are here: Home / Archives for Plant Profiles / Ground Cover

Groundcover for sun and shade

by Tricia

I’ve been asked what kind of perennial flowering plants would grow well on a slope, and at the base of the slope in an area shaded by trees.
Groundcovers work well on slopes. If the slope is in a full sun area you could try planting St. John’s Wort (Hypericum), Vinca minor, Ajuga, Verbena, and Wintercreeper. In shady areas you might try Vinca, Ajuga, Wintercreeper, Cornus canadensis (Bunch Berry), Bergenia, and Lamium maculatum.

Prepare the planting area well by removing weeds and amending the soil with organic matter. The organic matter will help hold soil moisture, and act as a natural fertilizer for the plants too. You can also add organic mulch around the plants to keep the weeds down until the plants start to grow and spread.






Filed Under: Garden Tips, Ground Cover, Recreation Tagged With: Ajuga, Bergenia, Bunch Berry, Cornus canadensis, Entertainment and Rec, full sun, Garden Tips, Ground Cover, groundcover, Hypericum, Lamium maculatum, organic matter, organic mulch, shade, shady area, St. Johns Wort, verbena, Vinca, Vinca minor, Wintercreeper

Ground Covers

by Tricia

If you have a small area of lawn like I do, or if you are tired of cutting the grass once or twice every week have you ever thought of putting in ground cover instead? You could carpet the ground entirely with low growing, easy care plants, known, naturally enough as ground covers.

You can use annuals as temporary ground cover – nasturtiums are excellent – but the best ground covers are spreading evergreen perennials or dense, low growing shrubs. Flowers are a feature of many, but far more important is the ability to make a carpet dense enough to smother weeds without growing too tall – ankle height is about right.

A good ground cover needs to be presentable all year; to need little in the way of trimming or spraying; and to be easy to propagate to cut down on cost. It is possible to weave patterns with several species, but the stronger will tend to crowd out the weaker, and simplicity usually looks better anyway. Ground covers cannot be walked on.

Prepare your ground cover bed as thoroughly as for any other plant, plant at the appropriate season, and mulch at once. The last thing you want is weeds getting in between the young plants. If you like, you can plant some low growing annuals between your permanent plants – and they will remind you to water and fertilize. Ground covers may be low, low maintenance when they are established, but when young they need care.

Here are some ground covers for both sun and shade:

Table 1: Ground cover plants for full sun.
Plant Name Height (in) Remarks
Achillea tomentosa
Woolly yarrow
2-4 Grayish foliage in low mats.
Antennaria spp.
Pussytoes
1-2 Persistent gray-green foliage in dense mats; excellent for rocky slopes.
Artemisia spp.
Sage
10-15 Silvery foliage; A. schmidtiana (silver mound sage) most common.
Atriplex corrugata
Mat saltbush
4-6 Evergreen; foliage greenish-white; for salty soils.
Centaurea montana
(perennial bachelor button)

Mountain bluet
15-18 Grayish foliage; blue flowers.
Cerastium tomentosum
Snow-in-summer
6 Gray foliage; white flowers; very aggressive.
Cytisus decumbens
Creeping broom
4-8 Green stems with tiny leaves; yellow, pea-like flowers in May.
Delosperma nubigenum
Yellow ice plant
1-2 Succulent, light-green foliage; yellow flowers.
Duchesnea indica
Mock strawberry
4-6 Aggressive creeper; looks much like strawberry; yellow flowers; inedible, red fruit.
Eriogonum umbellatum
Sulphur flower
3-6 Showy flower stalk to 8 inches tall; foliage in low mat.
Euphorbia epithymoides
(polychroma)

Cushion spurge
12-18 Mounds of foliage that change from reddish to green in spring, then scarlet in fall.
Euphorbia marginata
Snow-on-the-mountain
4-8 Green and white foliage; very aggressive.
Festuca ovina glauca
Blue fescue
6-8 Tufts of grayish, grassy foliage.
Juniperus horizontalis

Creeping juniper

Some common clones include:

‘Bar Harbor’

‘Blue Chip’

‘Hughes’

‘Webberi’

‘Wiltoni’ (‘Blue Rug’)
 

 

 

10

10

10

4

4

Perhaps the best year-round cover; many
clones and foliage hues available.

 

Blue-green; purplish winter color.

Bluish foliage year-round.

Silvery-blue; distinct radial branching.

Very low mat; fine texture.

Very low; silver-blue; purplish tinge in winter.
Penstemon pinifolius
Pineleaf penstemon
6-10 Has needle-like leaves and orange-red flowers; takes heat well.
Phlox subulata
Moss pink or creeping phlox
6-8 Reddish, white or lavender flowers; moss-like foliage.
Polygonum affine
Himalayan border jewel
12-18 Red, showy flowers late in season; excellent ground cover for dry areas.
Potentilla verna
Creeping potentilla
1/2-1 Very low mat with yellow, showy flowers; aggressive.
Ranunculus repens
Creeping buttercup
1-2 Yellow, showy flowers on creeping runners up to 2 feet long.
Santolina chamaecyparissus
Lavender-cotton
10-12 Blue-gray, persistent foliage in dense mats.
Sedum spp.
Stonecrop (sedum)
1-15 Many forms available; not usually competitive with weeds.
Sempervivum spp.
Houseleek, hen and chicks
2-4 Forms dense, evergreen mats; grows in very poor soils.
Thymus serpyllum
Mother-of-thyme
3-6 Low, mat-forming herb with tiny leaves; purple flowers; related species, woolly thyme, has gray-green foliage.
Veronica prostrata
Prostrate speedwell
1-2 Dark green foliage; deep blue flowers in short spikes.

_________________________

Table 2: Ground cover plants for shade.
Plant Name Height (in) Remarks
Aegopodium podagraria ‘variegatum’
Bishop’s weed
10-12 Variegated, green and white foliage; aggressive.
Arctostaphylos uva-ursi
Kinnikinnick
4-6 Evergreen; red, edible berries; use beneath established evergreens in acid soils.
Campanula carpatica
Carpathian harebell
6-14 Can be aggressive; blue or white flowers.
Convallaria majalis
Lily-of-the-valley
6-10 Fragrant, white flowers in May-June; inedible, red berries; aggressive.
Galium odorata
Sweet woodruff
6-8 Very aggressive; one of the best covers under shrubs; white, fragrant flowers in May-June.
Lonicera japonica ‘Halliana’
Hall’s Japanese honeysuckle
6-12 Will also grow in full sun, but forms denser mats in shade.
Mahonia repens
Creeping Oregon grape
6-12 Evergreen; yellow flowers in spring; holly-like foliage.
Penstemon caespitosus
Creeping or mat penstemon
1-2 Very prostrate mat of tiny narrow leaves; flowers in May-June; purplish.
P. strictus
Rocky Mountain penstemon
1-2 Blue flowers in June-July.
Vinca minor
Periwinkle
4-6 Semievergreen; white or purple flowers in spring.

I hope that this article helps you decide on the correct ground cover for your garden if you choose to cover an area with these practical plants.

Filed Under: Garden Buzz, Ground Cover, In The Garden Tagged With: garden, Ground Cover, ground cover for shade, ground cover for sun, plants, replace lawn, selection


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